* src/SDCCmain.c (linkEdit): do not test for PIC16 target since, PIC16

* src/SDCCmain.c (linkEdit): do not test for PIC16 target since, PIC16
linking is done manually in pic16 port's _linkEdit,
* src/SDCCsymt.c (compStructSize): for target PIC16 and shell variable
PIC16_PACKED_BITFIELDS, compact bitfield structures as much as possible,
* src/pic16/gen.c (aopForSym): when direct register name is WREG then
allocate asmop as AOP_ACC,
(aopForRemat): added parameter 'bool result' in function declaration,
(pic16_aopGet): return AOP_ACC when accessing WREG,
(pic16_popGetTempReg): minor modification,
(pic16_popRegFromIdx): first try with 'pic16_regWithIdx' then with
'pic16_allocWithIdx',
(genPcall): removed ftype, usage of OP_SYM_TYPE asserted error when
calling function in absolute addresses,
(genAssign): take into account AOP_ACC asmop,
* src/pic16/pcode.c (pic16_newpCodeOpReg): minor modifications,
* src/pic16/pcoderegs.c: some debug functions and lines added,
* src/pic16/ralloc.c (decodeRegType): added but commented out,
* (pic16_typeRegWithIdx): search 'pic16_dynInternalRegs' for given
register too,
* (pic16_findFreeReg, pic16_findFreeRegNext): allocate new register via
call to allocReg, not by manually allocating a new one,
(pic16_assignRegisters): now before going through the register
allocating functions mark all registers as free. This eliminates some
side effects resulting from peephole parser done earlier in the backbone

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4061 4a8a32a2-be11-0410-ad9d-d568d2c75423